Modular UPS system



FIG. 1 is a left side view of modular UPS system showing our new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a is a perspective view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

The ornamental design for modular UPS system, as shown and described. 